Why?

I doubt the 1 inch wind deflector really helps anymore with fuel millage when the truck has a 6 in lift kit & big heavy tires. Those deflectors are use the cut back on the wind resistance under the truck right?

I doubt the 1 inch wind deflector really helps anymore with fuel millage when the truck has a 6 in lift kit & big heavy tires. Those deflectors are use the cut back on the wind resistance under the truck right?

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I don't have the #s to confirm it since so much changed at the exact time I lifted, but I don't see how it could improve my mileage at this point.